Tubing-catcher.



T. E. D. GRUMPTON.

TUBING CATCHER.

v AKPPLIGATION FILED Mmmm, 1912.

1,066,000. Patented July 1, 1913.

Inventor f j, Attorneys T HOMAS EDWARD DOLPHIN CRUMPTON, OF COALINGA,CALIFORNIA.

TUBING-CATCHER.

Locaoo..

Specification of Letters Patent.

Application filed March .16,

Patented July 1 1913.

1912. Serial No. 684,343..

T0 all 'whom t may concern.'

Be itV known that I, THOMAS EDWARD DoLPHIN CRUMPTON, a'citizen ofthe-United States, residing at Coalinga, in the county of Fresno andState ofCalifornia, have invented a new and useful Tubing-Catcher, of.which the following is a specification. f

This invention relates to tubing catchers for. oil or gas wells. Theprimary object of the invent-ion is to provide each of the tubingsections with means for preventing the same fro-m falling within thewell, should the sections separate..

A further object is to so constructthe catcher that the same may bereadily released from contact with the well casing as the tubing sectionis raised by a spear or grab.

In the drawings Figure 1 is an eleva tion, partly in section.; Fig. 2 isa section taken o-n line 2 2 of Fig. 1'. Fig. 3 is a section on line 3 3of Fig. 1. Fig. l is a Y section on line 1 4 of Fig. 1. Fig. 5 is asection on line 55 o-f Fig. 1. A

In the drawings, 10 designates the tubing, which ordinarily is placed insections in the well. As stated above, the purposeof the presentinvention is to provide each yof these sections with means, adapted `'tocontactwith the w`ell casing, to support the tubing should the sectionsseparate.

Each o-f the tubing sections at various points, preferably adjacent thecouplings between the sections, are provided with a sleeve 11, saidsleeve l1 being supported on the tubing by set screws 12. This sleeve.is'provided with a plurality of lugs 14 and 15. which Vextend radiallyfrom the same.

' A collar 16 is slidably arranged upon the sleeve 11, said collar beingprovided withbayonet slots 17 which receive the radially extending lugs14 and 15, the collar being thus supported on the sleeve. A

A plurality of rods 18 and 19 aresecure'd to said collar, the terminals20 =ofsaid rods being enlarged and secured to jaws 21. `The cylindricalmember 22 issupported, on the tubing between the collars 24 and 26, saidY cylindrical member 22 being provided with the dove-tail grooves 27,which are beveled, the jaws 28 which are correspondingly dovetailed,sliding in. said grooves,.the "bevelofv` the grooves forcing the jaws inContact with.

the well casing when the tubing .section-1 to unlocked position t-he bowspring 30' would by frictional contact with the well casing force thewedges 21 upward to support the tube 10 by wedging Contact of themembers 21 with the well casing.

It will be noted that as soon as the tubing is raised by means of aspear or other catcher, the block 22 may be drawn upward, and the jawsassume their normal position, out of contact with the casing, allowingthe sectlions to be readily withdrawn from the wel It will thus be notedthat the device provides an effective tube catcher, which when a tubesection becomes detached, holds the same against falling, and which assoon as the tube is raised by any suitable means, immediately releasesto allow for the removal of the tube.

It will also be noted that the peculiar gripping mechanism allows thetubing to be lowered into the well at any depth, the device not beingset for gripping, until the radially extending lugs 1,5 are brought intothe longitudinal portion of .the bayonet slots 16, the springs 30controlling the slip of the Asaid rods, a secondcollar, the'terminals ofsaid spring remote from therods being secured to said second collar. i;

2. A tube retaining device foroil and gas wells, comprising asleeveseeured-,to the tub- Ving section, a collar` removablysecured tosleeve, a vcylindri cal member arranged upon said tubing section,collars arranged upon said tubing section adjacent the ends of saidcylindrical member, said cylindrical member being formed with grooved,beveled surfaces, jaws slidably disposed on said beveled surfaces, saidjaws being formed with ribs extending Within tbe grooves formed in saidcylindrical member and rods connecting said aws with the first mentionedcollar.

3. A tube retaining device for oil and gas Wells, comprising a sleeve,secured to the tubing section, a collar removably secured to saidsleeve, a cylindrical member arranged upon the tubing section, jawssupported for sliding movement by said cylindrical meniber, rodsconnecting said jaws and said collar, springs supported by said rods,and a second collar removably secured to said tubular section, saidspring being. `'secured to said second collar. g

In testimony that I claimthe foregoing as my own, I have hereto aiixedmy signature in the presence of two Witnesses.

v THOMAS EDWARD DOLPHIN CRUMP'ION.

Witnesses E. D. PARKER, PAUL HU1\1 'rzAorL

